European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: XN Risk Phrases: R 20/21/22 Harmful by inhalation, in contact with skin and if swallowed. Safety Phrases: S 36/37 Wear suitable protective clothing and gloves. WGK (Water Danger/Protection) CAS# 219719-19-4: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 219719-19-4 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 219719-19-4 is not listed on the TSCA inventory. It is for research and development use only.